The error "Unable to load library" typically means the application is trying to call a .dll file or a specific function within a library that the operating system has blocked or cannot understand due to security updates or architecture changes.

Check the box for and select Windows XP (Service Pack 3) or Windows 7 . Check the box for "Run this program as an administrator." Click Apply and restart the program. 2. Update/Reinstall DirectX 9.0c